▎ 摘　　要

NOVELTY - A phthalate esters compound is prepared by dissolving ferric chloride hexahydrate in ethanediol, ultrasonic stirring, adding graphene oxide, ultrasonic dispersing, adding anhydrous sodium acetate, ultrasonic stirring, placing solution into reaction kettle, drying at 200 degrees C, crystallizing for 8-24 hours, cooling, washing with deionized water and alcohol, and vacuum drying for 12 hours to obtaining magnetic graphene. USE - Method for preparing phthalate ester compound for molecular imprinting (claimed). DETAILED DESCRIPTION - Preparing phthalate ester compound comprises: (A) dissolving ferric chloride hexahydrate in ethanediol, ultrasonic stirring to obtain yellow transparent solution, adding graphene oxide, ultrasonic dispersing, adding anhydrous sodium acetate, ultrasonic stirring for 30 minutes, placing solution into stainless steel reaction kettle, putting in oven box at 200 degrees C, crystallizing for 8-24 hours, cooling, washing with deionized water and alcohol, and vacuum drying for 12 hours to obtaining magnetic graphene; (B) adding sodium citrate, mixing, putting in oil bath, stirring at 100 degrees C for 2.5 hours, adding 10 wt.% chloroauric acid solution, stirring for 30 minutes, cooling, washing, magnetic separating, and vacuum drying at 60 degrees C to obtain magnetic graphite alkenyl gold nanoparticle composite material; (C) mixing composite material with sodium hydroxide and sodium chlorate, ultrasonic treating for 1-2 hours, standing to precipitate, separating the precipitate, washing with anhydrous ethyl alcohol, and vacuum drying to obtain carboxylated magnetic graphite alkenyl gold nanoparticle composite material; and (D) ultrasonic dispersing composite material in acetonitrile. adding phthalic acid ester compound, methacrylic acid and divinyl benzene, and ultrasonic dispersing, adding 0.5 mg/mL acetonitrile solution of azobisisobutyronitrile, placing in oil bath at 50-80 degrees C for 24 hours, collecting product, washing with ethyl alcohol and acetone, adding glacial acetic acid, and vacuum drying.